from diceplayer.shared.utils.dataclass_protocol import Dataclass
from diceplayer.shared.config.gaussian_config import GaussianDTO
from diceplayer.shared.config.dice_config import DiceConfig

from dataclasses import dataclass
from dacite import from_dict


@dataclass
class PlayerConfig(Dataclass):
    """
    Data Transfer Object for the player configuration.
    """
    opt: bool
    maxcyc: int
    nprocs: int
    ncores: int

    dice: DiceConfig
    gaussian: GaussianDTO

    mem: int = None
    switchcyc: int = 3
    qmprog: str = 'g16'
    altsteps: int = 20000
    geoms_file = 'geoms.xyz'
    simulation_dir = 'simfiles'

    def __post_init__(self):
        MIN_STEP = 20000
        # altsteps value is always the nearest multiple of 1000
        self.altsteps = round(max(MIN_STEP, self.altsteps) / 1000) * 1000

    @classmethod
    def from_dict(cls, param: dict):
        if param['dice'] is None:
            raise ValueError(
                "Error: 'dice' keyword not specified in config file."
            )
        param['dice'] = DiceConfig.from_dict(param['dice'])

        if param['gaussian'] is None:
            raise ValueError(
                "Error: 'gaussian' keyword not specified in config file."
            )
        param['gaussian'] = GaussianDTO.from_dict(param['gaussian'])

        return from_dict(PlayerConfig, param)